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The subcourse provides descriptions of the processes for identifying the physical and mechanical properties, categories of various metals, ... structure and density of the material, as described in the following paragraphs. 0000002126 00000 n 0000002365 00000 n The words that describe materials are their properties.These are things that do not change unless you change the material. 0000055904 00000 n Self-explanatory terms are given without definitions. 2. trailer 0000001096 00000 n II. ]�jh�����q[=�7��>��~�Y�n�o����:�4�C�~E��[�dk5y�8���y�5&�7ڈ��q��L�fe[@��-zV���G� 0000072414 00000 n 0000006509 00000 n 0000001516 00000 n There are a variety of different ceramic materials each with their own different capabilities, advantages and disadvantages; their use in bearing and rolling element applications was pioneered by many of the space agencies and continues to be at the forefront of engineering technology. 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